Humanity's understanding of the geometry of the solar system has developed over thousands of years. This journey towards a more accurate model of our planetary system has been marked throughout by controversy and misconception. The science of direct observation would ultimately play the most important role in bringing order to our understanding of the universe.

Ancient Conceptions and Misconceptions

Archaeologists have found artifacts demonstrating that ancient Babylonians and Egyptians made numerous observations of celestial events such as full moons, new moons, and eclipses, as well as the paths of the Sun and Moon relative to the stars. The ancient Greeks drew upon the work of the ancient Babylonians and Egyptians, and they used that knowledge to learn even more about the heavens.

As far back as the sixth century B.C.E., Greek astronomers and mathematicians attempted to determine the...